Responsibilities
- Build features across the stack: React/Redux on the frontend, Python/FastAPI services on the backend
- Design and integrate REST APIs, including rate limiting, retries, and idempotency for external integrations
- Model and query data across MongoDB, PostgreSQL, and Elasticsearch as needed
- Work with Kafka based event streams for cross-service communication
- Write unit and integration tests on both ends of the stack (Jest/React Testing Library on frontend, pytest on backend)
- Debug and triage production issues across the stack, using observability tools (OpenTelemetry, NewRelic) to find root cause
- Collaborate with product and design on features, and with QA on test coverage
- Contribute to CI/CD pipelines (GitLab CI) and Docker based deployments
- Apply secure coding practices, given the platform handles healthcare data

Required skills
- Proficiency in JavaScript (ES6+) and Python
- Working knowledge of React (hooks, state management with Redux) and a Python web framework (FastAPI or Django)




- Comfortable working with both relational (PostgreSQL) and NoSQL (MongoDB) databases
- Experience writing automated tests on both frontend and backend
- Proficient with Git and collaborative workflows
- Robust CS fundamentals: data structures, algorithms, and system design basics

Good to have
- TypeScript experience
- Experience with Kafka or other event streaming/message queue systems
- Experience with LLM/AI tooling: LangChain, RAG pipelines, or agent frameworks
- Familiarity with Docker and containerized deployments
- Familiarity with observability tooling (OpenTelemetry, NewRelic, Grafana)
- Exposure to multi-cloud storage SDKs (AWS, Azure, GCP)
- Healthcare interoperability background (FHIR, HL7, EHR integrations such as Epic or Cerner) - not required, general distributed systems thinking matters most

📌 Full Stack Engineer (Noida)
🏢 Mastek
📍 Noida